nymaim | d96f67753f2b90f2cb90ea40034c7c270d1f819d1bb4a562a19ae2e0e65b3bb0

Analysis

max time kernel
114s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2022, 19:48

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General

Target
file.exe
Size 290KB
Sample220925-yh4e4afhf8
SHA256 d96f67753f2b90f2cb90ea40034c7c270d1f819d1bb4a562a19ae2e0e65b3bb0
MD5 b98a60d3374a3e6bbf3bded47908b5fe
SHA1 0e90a586cabd539f5175173d247ac65ac31b4070
SHA512 81be36d7d71625643317b1254489a038d078c56185b250bc422b6e46f7fcf9ef8e29660c3372b860d0f3760f6b64088745c1ac7e8b8d5150d50d8ba93918ca29
SSDEEP 3072:RaS8+ZlbEz5o8S62OxIBkRpqeTcT3b1mE8Lgo3j6N2MMFzTVGuek9BJarL6/Pkuf:j7OxIIge6r1P8LD3j6N25BGuz
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nymaim trojan

Malware Config

Extracted

Family

nymaim

208.67.104.97
85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim
Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1928	Cleaner.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	file.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 11 IoCs

pid	pid_target	Process	procid_target
4476	5108	WerFault.exe	80
4004	5108	WerFault.exe	80
3472	5108	WerFault.exe	80
1940	5108	WerFault.exe	80
1564	5108	WerFault.exe	80
1544	5108	WerFault.exe	80
208	5108	WerFault.exe	80
3720	5108	WerFault.exe	80
4084	5108	WerFault.exe	80
3684	5108	WerFault.exe	80
3496	5108	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
3280	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5108	file.exe
5108	file.exe
5108	file.exe
5108	file.exe
5108	file.exe
5108	file.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5108	file.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	Cleaner.exe
Token: SeDebugPrivilege	3280	taskkill.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5108 wrote to memory of 2436	5108	file.exe	104
PID 5108 wrote to memory of 2436	5108	file.exe	104
PID 5108 wrote to memory of 2436	5108	file.exe	104
PID 2436 wrote to memory of 1928	2436	cmd.exe	106
PID 2436 wrote to memory of 1928	2436	cmd.exe	106
PID 5108 wrote to memory of 4724	5108	file.exe	115
PID 5108 wrote to memory of 4724	5108	file.exe	115
PID 5108 wrote to memory of 4724	5108	file.exe	115
PID 4724 wrote to memory of 3280	4724	cmd.exe	119
PID 4724 wrote to memory of 3280	4724	cmd.exe	119
PID 4724 wrote to memory of 3280	4724	cmd.exe	119

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:5108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 460
  2⤵
  - Program crash
  PID:4476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 772
  2⤵
  - Program crash
  PID:4004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 792
  2⤵
  - Program crash
  PID:3472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 772
  2⤵
  - Program crash
  PID:1940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 812
  2⤵
  - Program crash
  PID:1564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 928
  2⤵
  - Program crash
  PID:1544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 1008
  2⤵
  - Program crash
  PID:208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 1368
  2⤵
  - Program crash
  PID:3720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\Qxu5bveuohU\Cleaner.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Users\Admin\AppData\Local\Temp\Qxu5bveuohU\Cleaner.exe
    "C:\Users\Admin\AppData\Local\Temp\Qxu5bveuohU\Cleaner.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:1928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 1380
  2⤵
  - Program crash
  PID:4084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 1784
  2⤵
  - Program crash
  PID:3684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "file.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\file.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4724
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "file.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3280
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 1768
  2⤵
  - Program crash
  PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5108 -ip 5108
1⤵
PID:4852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5108 -ip 5108
1⤵
PID:4356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5108 -ip 5108
1⤵
PID:3420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 5108 -ip 5108
1⤵
PID:1924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 5108 -ip 5108
1⤵
PID:2512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5108 -ip 5108
1⤵
PID:3092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 5108 -ip 5108
1⤵
PID:3776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 5108 -ip 5108
1⤵
PID:4384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 5108 -ip 5108
1⤵
PID:4332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 5108 -ip 5108
1⤵
PID:2364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 5108 -ip 5108
1⤵
PID:4720

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

Bunifu_UI_v1.5.3.dll

Path C:\Users\Admin\AppData\Local\Temp\Qxu5bveuohU\Bunifu_UI_v1.5.3.dll
Size 236KB
SHA256 f1b3e0f2750a9103e46a6a4a34f1cf9d17779725f98042cc2475ec66484801cf
MD5 2ecb51ab00c5f340380ecf849291dbcf
SHA1 1a4dffbce2a4ce65495ed79eab42a4da3b660931
SHA512 e241a48eafcaf99187035f0870d24d74ae97fe84aaadd2591cceea9f64b8223d77cfb17a038a58eadd3b822c5201a6f7494f26eea6f77d95f77f6c668d088e6b
SSDEEP 6144:SIQpxILDXGGMO7Ice9C5kQw2hWHcHTykhb:SIQpxILDXGGlET9n/cHG
MD5 SHA1 SHA512 SSDEEP

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Cleaner.exe

Path C:\Users\Admin\AppData\Local\Temp\Qxu5bveuohU\Cleaner.exe
Size 3.8MB
SHA256 301d9c55653f6cd8211aafdaf130092cb7ef8ea2e54db2db97153c1c8abf272c
MD5 23c1e8f48ec06960bbd9969c1f404192
SHA1 b9384151eb3f2dbd095fa273c248722e1cc74ea3
SHA512 f572e3a0ad58b3a1ed22db00b05a3909f7f53f70b84ab736e2dd6ddc54d8781fcffe4a9b33b0dd2836d438a1982b944426fe4ed01bd866bd77e20046220f2b5b
SSDEEP 49152:W/PD/DL/D9CuZrr2h60qPAnDfvl/DK1zAb2ibtbelHi2btsTBrfwWXRxL56ZD0Mp:W3D///UUrPmfvVDWASmXnMn
MD5 SHA1 SHA512 SSDEEP

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Cleaner.exe

Path C:\Users\Admin\AppData\Local\Temp\Qxu5bveuohU\Cleaner.exe
Size 3.8MB
SHA256 301d9c55653f6cd8211aafdaf130092cb7ef8ea2e54db2db97153c1c8abf272c
MD5 23c1e8f48ec06960bbd9969c1f404192
SHA1 b9384151eb3f2dbd095fa273c248722e1cc74ea3
SHA512 f572e3a0ad58b3a1ed22db00b05a3909f7f53f70b84ab736e2dd6ddc54d8781fcffe4a9b33b0dd2836d438a1982b944426fe4ed01bd866bd77e20046220f2b5b
SSDEEP 49152:W/PD/DL/D9CuZrr2h60qPAnDfvl/DK1zAb2ibtbelHi2btsTBrfwWXRxL56ZD0Mp:W3D///UUrPmfvVDWASmXnMn
MD5 SHA1 SHA512 SSDEEP

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memory/1928-144-0x00007FF8CB890000-0x00007FF8CC351000-memory.dmp

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memory/1928-143-0x000001E244B10000-0x000001E244B52000-memory.dmp

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memory/1928-141-0x000001E2445C0000-0x000001E244740000-memory.dmp

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memory/1928-145-0x00007FF8CB890000-0x00007FF8CC351000-memory.dmp

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memory/5108-135-0x0000000000709000-0x0000000000730000-memory.dmp

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memory/5108-132-0x0000000000709000-0x0000000000730000-memory.dmp

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memory/5108-133-0x00000000021A0000-0x00000000021DF000-memory.dmp

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memory/5108-146-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/5108-134-0x0000000000400000-0x00000000005A2000-memory.dmp

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memory/5108-136-0x0000000000400000-0x00000000005A2000-memory.dmp

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memory/5108-152-0x0000000000709000-0x0000000000730000-memory.dmp

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memory/5108-153-0x0000000000400000-0x00000000005A2000-memory.dmp

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